Fuzz introspector: test_smartcols_fuzz
For issues and ideas: https://github.com/ossf/fuzz-introspector/issues

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked Calltree index Parent function Callsite Largest blocked function
65 222 scols_filter_parse_string call site: 00222 filter_dump_node
26 126 __filter_new_node call site: 00126 filter_unref_node
12 90 ul_parse_size call site: 00090 yyerror
8 162 filter_compile_param call site: 00162 filter_new_param
7 21 filter_free_param call site: 00021 ul_debug_prefix
6 49 yyensure_buffer_stack call site: 00049 yy_fatal_error
5 80 ul_parse_size call site: 00080 __ctype_b_loc
5 189 list_add_tail call site: 00189 filter_new_param
4 68 yylex call site: 00068 strtosize
3 4 scols_new_filter call site: 00004 getpid
3 103 yylex call site: 00103 yy_fatal_error
3 113 yy_get_next_buffer call site: 00113 yy_create_buffer

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 process_string [function] [call site] 00001
2 scols_new_filter [function] [call site] 00002
3 calloc [call site] 00003
3 ul_debug_prefix [function] [call site] 00004
4 getpid [call site] 00005
4 fprintf [call site] 00006
4 fprintf [call site] 00007
3 ul_debug [function] [call site] 00008
4 vfprintf [call site] 00009
4 fputc [call site] 00010
3 scols_filter_parse_string [function] [call site] 00011
4 reset_filter [function] [call site] 00012
5 filter_unref_node [function] [call site] 00013
6 filter_free_expr [function] [call site] 00014
7 filter_unref_node [function] [call site] 00015
8 filter_free_param [function] [call site] 00016
9 param_reset_data [function] [call site] 00017
10 regfree [call site] 00018
9 list_del_init [function] [call site] 00019
10 __list_del [function] [call site] 00020
9 scols_unref_column [function] [call site] 00021
10 ul_debug_prefix [function] [call site] 00022
10 ul_debug [function] [call site] 00023
10 list_del [function] [call site] 00024
11 __list_del [function] [call site] 00025
10 scols_reset_cell [function] [call site] 00026
10 ul_buffer_free_data [function] [call site] 00027
11 __assert_fail [call site] 00028
7 filter_unref_node [function] [call site] 00029
5 filter_free_params [function] [call site] 00030
6 list_empty [function] [call site] 00031
6 filter_unref_node [function] [call site] 00032
5 fclose [call site] 00033
4 strlen [call site] 00034
4 strlen [call site] 00035
4 fmemopen [call site] 00036
4 __errno_location [call site] 00037
4 yylex_init_extra [function] [call site] 00038
5 yyset_extra [function] [call site] 00039
5 __errno_location [call site] 00040
5 yyalloc [function] [call site] 00041
5 __errno_location [call site] 00042
5 yyset_extra [function] [call site] 00043
5 yy_init_globals [function] [call site] 00044
4 yyset_in [function] [call site] 00045
4 yyparse [function] [call site] 00046
5 yylex [function] [call site] 00047
6 yyensure_buffer_stack [function] [call site] 00048
7 yyalloc [function] [call site] 00049
7 yy_fatal_error [function] [call site] 00050
8 fprintf [call site] 00051
8 exit [call site] 00052
7 yyrealloc [function] [call site] 00053
8 realloc [call site] 00054
7 yy_fatal_error [function] [call site] 00055
6 yy_create_buffer [function] [call site] 00056
7 yyalloc [function] [call site] 00057
7 yy_fatal_error [function] [call site] 00058
7 yyalloc [function] [call site] 00059
7 yy_fatal_error [function] [call site] 00060
7 yy_init_buffer [function] [call site] 00061
8 __errno_location [call site] 00062
8 yy_flush_buffer [function] [call site] 00063
9 yy_load_buffer_state [function] [call site] 00064
8 fileno [call site] 00065
8 isatty [call site] 00066
8 __errno_location [call site] 00067
6 yy_load_buffer_state [function] [call site] 00068
6 strtold [call site] 00069
6 __errno_location [call site] 00070
6 strtosize [function] [call site] 00071
7 ul_parse_size [function] [call site] 00072
8 __ctype_b_loc [call site] 00073
8 __errno_location [call site] 00074
8 strtoumax [call site] 00075
8 __errno_location [call site] 00076
8 __errno_location [call site] 00077
8 localeconv [call site] 00078
8 strlen [call site] 00079
8 strncmp [call site] 00080
8 __ctype_b_loc [call site] 00081
8 __errno_location [call site] 00082
8 strtoumax [call site] 00083
8 __errno_location [call site] 00084
8 __errno_location [call site] 00085
8 strchr [call site] 00086
8 strchr [call site] 00087
8 do_scale_by_power [function] [call site] 00088
8 do_scale_by_power [function] [call site] 00089
8 __errno_location [call site] 00090
6 __errno_location [call site] 00091
6 yyerror [function] [call site] 00092
7 vasprintf [call site] 00093
7 strstr [call site] 00094
7 strlen [call site] 00095
7 __errno_location [call site] 00096
6 yyerror [function] [call site] 00097
6 yyerror [function] [call site] 00098
6 strtoumax [call site] 00099
6 fwrite [call site] 00100
6 yy_get_previous_state [function] [call site] 00101
6 yy_try_NUL_trans [function] [call site] 00102
6 yy_get_next_buffer [function] [call site] 00103
7 yy_fatal_error [function] [call site] 00104
7 yyrealloc [function] [call site] 00105
7 yy_fatal_error [function] [call site] 00106
7 getc [call site] 00107
7 ferror [call site] 00108
7 yy_fatal_error [function] [call site] 00109
7 __errno_location [call site] 00110
7 fread [call site] 00111
7 clearerr [call site] 00112
7 yyrestart [function] [call site] 00113
8 yyensure_buffer_stack [function] [call site] 00114
8 yy_create_buffer [function] [call site] 00115
8 yy_init_buffer [function] [call site] 00116
8 yy_load_buffer_state [function] [call site] 00117
7 yyrealloc [function] [call site] 00118
7 yy_fatal_error [function] [call site] 00119
6 yy_get_previous_state [function] [call site] 00120
6 yy_get_previous_state [function] [call site] 00121
6 yy_fatal_error [function] [call site] 00122
5 filter_new_expr [function] [call site] 00123
6 __errno_location [call site] 00124
6 __filter_new_node [function] [call site] 00125
7 calloc [call site] 00126
5 filter_unref_node [function] [call site] 00127
5 filter_unref_node [function] [call site] 00128
5 filter_new_expr [function] [call site] 00129
5 filter_unref_node [function] [call site] 00130
5 filter_unref_node [function] [call site] 00131
5 filter_new_expr [function] [call site] 00132
5 filter_unref_node [function] [call site] 00133
5 filter_new_expr [function] [call site] 00134
5 filter_unref_node [function] [call site] 00135
5 filter_unref_node [function] [call site] 00136
5 filter_new_expr [function] [call site] 00137
5 filter_unref_node [function] [call site] 00138
5 filter_unref_node [function] [call site] 00139
5 filter_new_expr [function] [call site] 00140
5 filter_unref_node [function] [call site] 00141
5 filter_unref_node [function] [call site] 00142
5 filter_new_expr [function] [call site] 00143
5 filter_unref_node [function] [call site] 00144
5 filter_unref_node [function] [call site] 00145
5 filter_new_expr [function] [call site] 00146
5 filter_unref_node [function] [call site] 00147
5 filter_unref_node [function] [call site] 00148
5 filter_new_expr [function] [call site] 00149
5 filter_unref_node [function] [call site] 00150
5 filter_unref_node [function] [call site] 00151
5 filter_compile_param [function] [call site] 00152
6 strlen [call site] 00153
6 is_unsafe_regex [function] [call site] 00154
7 strlen [call site] 00155
7 __errno_location [call site] 00156
7 strtoul [call site] 00157
7 __errno_location [call site] 00158
6 calloc [call site] 00159
6 regcomp [call site] 00160
6 regerror [call site] 00161
6 regerror [call site] 00162
5 filter_new_expr [function] [call site] 00163
5 filter_unref_node [function] [call site] 00164
5 filter_unref_node [function] [call site] 00165
5 filter_compile_param [function] [call site] 00166
5 filter_new_expr [function] [call site] 00167
5 filter_unref_node [function] [call site] 00168
5 filter_unref_node [function] [call site] 00169
5 filter_new_param [function] [call site] 00170
6 __errno_location [call site] 00171
6 __filter_new_node [function] [call site] 00172
6 param_set_data [function] [call site] 00173
7 rem_quotation [function] [call site] 00174
8 strlen [call site] 00175
8 strndup [call site] 00176
7 strdup [call site] 00177
7 rtrim_whitespace [function] [call site] 00178
8 strlen [call site] 00179
8 __ctype_b_loc [call site] 00180
7 ltrim_whitespace [function] [call site] 00181
8 __ctype_b_loc [call site] 00182
8 strlen [call site] 00183
6 filter_free_param [function] [call site] 00184
6 strdup [call site] 00185
6 ul_debug_prefix [function] [call site] 00186
6 ul_debug [function] [call site] 00187
6 list_add_tail [function] [call site] 00188
7 __list_add [function] [call site] 00189
5 filter_new_param [function] [call site] 00190
5 filter_new_param [function] [call site] 00191
5 filter_new_param [function] [call site] 00192
5 filter_new_param [function] [call site] 00193
5 filter_new_param [function] [call site] 00194
5 yysyntax_error [function] [call site] 00195
6 yytnamerr [function] [call site] 00196
7 stpcpy [call site] 00197
7 strlen [call site] 00198
6 yytnamerr [function] [call site] 00199
6 strlen [call site] 00200
6 yytnamerr [function] [call site] 00201
5 yysyntax_error [function] [call site] 00202
5 yyerror [function] [call site] 00203
5 yydestruct [function] [call site] 00204
6 filter_unref_node [function] [call site] 00205
5 yydestruct [function] [call site] 00206
5 yyerror [function] [call site] 00207
5 yydestruct [function] [call site] 00208
5 yydestruct [function] [call site] 00209
4 yylex_destroy [function] [call site] 00210
5 yy_delete_buffer [function] [call site] 00211
6 yyfree [function] [call site] 00212
6 yyfree [function] [call site] 00213
5 yypop_buffer_state [function] [call site] 00214
6 yy_delete_buffer [function] [call site] 00215
6 yy_load_buffer_state [function] [call site] 00216
5 yyfree [function] [call site] 00217
5 yyfree [function] [call site] 00218
5 yy_init_globals [function] [call site] 00219
5 yyfree [function] [call site] 00220
4 fclose [call site] 00221
4 scols_dump_filter [function] [call site] 00222
5 ul_jsonwrt_init [function] [call site] 00223
5 ul_jsonwrt_open [function] [call site] 00224
6 print_name [function] [call site] 00225
7 fputs [call site] 00226
7 fputs [call site] 00227
7 fputs [call site] 00228
7 ul_jsonwrt_indent [function] [call site] 00229
8 fputs [call site] 00230
7 fputs_quoted_case_json [function] [call site] 00231
8 fputc [call site] 00232
8 fputc [call site] 00233
8 fputc [call site] 00234
8 c_toupper [function] [call site] 00235
8 c_tolower [function] [call site] 00236
8 fputc [call site] 00237
8 toupper [call site] 00238
8 tolower [call site] 00239
8 fputc [call site] 00240
8 fputs [call site] 00241
8 fputs [call site] 00242
8 fputs [call site] 00243
8 fputs [call site] 00244
8 fputs [call site] 00245
8 fprintf [call site] 00246
8 fputc [call site] 00247
6 fputs [call site] 00248
5 filter_dump_node [function] [call site] 00249
6 filter_dump_expr [function] [call site] 00250
7 ul_jsonwrt_open [function] [call site] 00251
7 expr_type_as_string [function] [call site] 00252
7 ul_jsonwrt_value_s [function] [call site] 00253
8 ul_jsonwrt_open [function] [call site] 00254
8 fputs_quoted_case_json [function] [call site] 00255
8 fputs [call site] 00256
8 ul_jsonwrt_close [function] [call site] 00257
9 __assert_fail [call site] 00258
9 fputc [call site] 00259
9 fputs [call site] 00260
9 ul_jsonwrt_indent [function] [call site] 00261
9 fputc [call site] 00262
9 fputc [call site] 00263
7 filter_dump_node [function] [call site] 00264
8 filter_dump_param [function] [call site] 00265
9 ul_jsonwrt_open [function] [call site] 00266
9 ul_jsonwrt_value_boolean [function] [call site] 00267
10 ul_jsonwrt_open [function] [call site] 00268
10 fputs [call site] 00269
10 ul_jsonwrt_close [function] [call site] 00270
9 datatype2str [function] [call site] 00271
9 ul_jsonwrt_value_s [function] [call site] 00272
9 ul_jsonwrt_value_s [function] [call site] 00273
9 ul_jsonwrt_value_u64 [function] [call site] 00274
10 ul_jsonwrt_open [function] [call site] 00275
10 fprintf [call site] 00276
10 ul_jsonwrt_close [function] [call site] 00277
9 ul_jsonwrt_value_double [function] [call site] 00278
10 ul_jsonwrt_open [function] [call site] 00279
10 fprintf [call site] 00280
10 ul_jsonwrt_close [function] [call site] 00281
9 ul_jsonwrt_value_boolean [function] [call site] 00282
9 ul_jsonwrt_value_s [function] [call site] 00283
9 ul_jsonwrt_close [function] [call site] 00284
7 filter_dump_node [function] [call site] 00285
7 ul_jsonwrt_close [function] [call site] 00286
5 ul_jsonwrt_close [function] [call site] 00287
3 scols_unref_filter [function] [call site] 00288
4 ul_debug_prefix [function] [call site] 00289
4 ul_debug [function] [call site] 00290
4 reset_filter [function] [call site] 00291
4 remove_counters [function] [call site] 00292
5 ul_debug_prefix [function] [call site] 00293
5 ul_debug [function] [call site] 00294
5 list_empty [function] [call site] 00295
5 filter_unref_node [function] [call site] 00296
5 list_del_init [function] [call site] 00297
2 scols_unref_filter [function] [call site] 00298